Possibly another application is using the port but as Alexander suggested, it worked. I put the iis off, installed Qlik Sense, opened qmc, changed the port number from proxies and turned iis back on.

It's working now. Thanks.

I have another issue though; cannot seem to run qmc on another system even though I have a public IP address on it. I have created an anonymous login access rule and added the IP address and DNS to the virtual proxies.

Please ignore my last message. I have been able to get the log in page for qmc with the public IP address. The challenge now is credentials. I enter the domain\user_name with the password and it comes up with an error saying the user is not authenticated and when I do the same thing on the network - local, it works.

Should the domain\user_name be written differently when logging in with the public IP address?